Let's assume that DOFP undoes the "old" X-Men films and establishes a new timeline, with the previous timeline contradictions erased. This would open the way to connect the X-Men and Avengers franchises. There would no longer be a chronological contradiction between the two franchises.

Quicksilver could be a brief cameo at the end of the film that basically establishes that this is a new timeline connected to the MCU.

Quote:

Originally Posted by Hawkingbird

Never going to happen

it wouldn't UNDO any timeline. It would create an alternate one.

my theory is still staying the same...the different studios are going to become a part of a large movie multiverse..and will use characters, to be the common ground...alternate timeline things...it's happening in the comics, it's happening in fox apparently, and it's likely going to happen in gotg.

People are totally entitled to their opinions, but they are just opinions. i have a very strong feeling that these movies are going to be built into a multiverse, and each one is a different timeline.